71684440

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{587}}^1$

素因数の和:712

約数の個数: 64

約数和(自身を含む): 167650560

約数和(自身を除く): 95966120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 71, 86, 142, 172, 215, 284, 344, 355, 430, 568, 587, 710, 860, 1174, 1420, 1720, 2348, 2840, 2935, 3053, 4696, 5870, 6106, 11740, 12212, 15265, 23480, 24424, 25241, 30530, 41677, 50482, 61060, 83354, 100964, 122120, 126205, 166708, 201928, 208385, 252410, 333416, 416770, 504820, 833540, 1009640, 1667080, 1792111, 3584222, 7168444, 8960555, 14336888, 17921110, 35842220, 71684440]

約数ペア:

[(1, 71684440), (2, 35842220), (4, 17921110), (5, 14336888), (8, 8960555), (10, 7168444), (20, 3584222), (40, 1792111), (43, 1667080), (71, 1009640), (86, 833540), (142, 504820), (172, 416770), (215, 333416), (284, 252410), (344, 208385), (355, 201928), (430, 166708), (568, 126205), (587, 122120), (710, 100964), (860, 83354), (1174, 61060), (1420, 50482), (1720, 41677), (2348, 30530), (2840, 25241), (2935, 24424), (3053, 23480), (4696, 15265), (5870, 12212), (6106, 11740)]